Python regex to find digit in first n characters

Question

I was wondering if it is possible to use a regex to check the first n characters of a string and determine if any of them contain a digit?

I realize this can be done by first splitting the string and then using a \d on the substring, but I would like to see a solution where it could be done in one shot

Yes it is possible to do it with regex and also, without regex. Refer to [link](https://stackoverflow.com/q/19859282/4410922). But SO is not here to provide you solutions — yash, Dec 04 '17 at 18:39

score 3 · Accepted Answer · answered Dec 04 '17 at 18:45

3

This will do it in 1 shot, but not the way you'd expect:

r'\D{n}'

That is, it matches string of length n that does not contain any digits; thus, if the match fails, there must be a digit in the first n characters.

answered Dec 04 '17 at 18:45

Scott Hunter

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Yep, works as expected. Good to know, thanks! – ekjcfn3902039 Dec 04 '17 at 18:53

Python regex to find digit in first n characters

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